[TexasGator]

His relationship to the whistleblower was not ‘speech or debate in either house’.

[Political Junkie Too]

I think "speech or debate" would be broadly construed to mean any workings of the chamber, including conducting committee hearings.

Committees are really the whole chamber delegating the "debating" (fact-finding) to a subset, to be worked out and reported back to the whole.

I wouldn't bet on taking it too narrowly mean actual debate on the floor of the chamber.

-PJ